/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jena.jdbc.tdb.results;
import static java.sql.ResultSet.CONCUR_READ_ONLY;
import static java.sql.ResultSet.TYPE_FORWARD_ONLY;
import static org.apache.jena.jdbc.results.metadata.AskResultsMetadata.COLUMN_LABEL_ASK;
import static org.apache.jena.tdb.TDBFactory.createDataset;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import org.apache.jena.jdbc.tdb.connections.DebugTdbConnection;
import org.apache.jena.query.Dataset;
import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
/**
* Tests for result sets using a disk backed TDB dataset, to check that there are no problems with filenames.
*/
public class TestTdbDiskResultSets extends Assert {
/**
* Temporary directory rule used to guarantee a unique temporary folder for each test method
*/
@Rule
public TemporaryFolder tempDir = new TemporaryFolder();
/**
* Test ASK results with a true result
*
* @throws SQLException
*/
@Test
public void results_ask_true() throws SQLException {
Dataset ds = createDataset(tempDir.getRoot().getAbsolutePath());
try (DebugTdbConnection connection = new DebugTdbConnection(ds)) {
Statement stmt = connection.createStatement(TYPE_FORWARD_ONLY, CONCUR_READ_ONLY);
ResultSet rset = stmt.executeQuery("ASK { }");
assertNotNull(rset);
assertFalse(rset.isClosed());
assertTrue(rset.isBeforeFirst());
// Try to move to the result row
assertTrue(rset.next());
// Check the boolean return value
assertTrue(rset.getBoolean(COLUMN_LABEL_ASK));
// Check no further rows
assertFalse(rset.next());
assertTrue(rset.isAfterLast());
// Close and clean up
rset.close();
assertTrue(rset.isClosed());
}
}
/**
* Test ASK results with a false result
*
* @throws SQLException
*/
@Test
public void results_ask_false() throws SQLException {
Dataset ds = createDataset(tempDir.getRoot().getAbsolutePath());
try (DebugTdbConnection connection = new DebugTdbConnection(ds)) {
Statement stmt = connection.createStatement(TYPE_FORWARD_ONLY, CONCUR_READ_ONLY);
ResultSet rset = stmt.executeQuery("ASK { FILTER(false) }");
assertNotNull(rset);
assertFalse(rset.isClosed());
assertTrue(rset.isBeforeFirst());
// Try to move to the result row
assertTrue(rset.next());
// Check the boolean return value
assertFalse(rset.getBoolean(COLUMN_LABEL_ASK));
// Check no further rows
assertFalse(rset.next());
assertTrue(rset.isAfterLast());
// Close and clean up
rset.close();
assertTrue(rset.isClosed());
}
}
}